Now imagine that you can point to any scale on that snake, and assign a number to it. The snake is totally up for this exercise, but you have to talk to the snake in a way it can understand. That's Speakeltongue!
Use commands to point at scales up and down the snake's body, and assign numbers to the scale you're pointing at. You can also feed the snake, loop through commands, and have them return the output in a way that's... you know, it's probably better that we leave output up to the imagination.
SSSSSadds 5 to the current scale,
guuuuulpeats 5 characters of food, and
HISSSSSSSSSSoutputs the current scale's value 9 times.